Nightmare
Peter, Tony, Dr. Strange, Starlord, Mantis, and Drax were all on Titan when Parker felt a bizarre wave of...something wash over them. Out of nowhere, Mantis disintegrated into ash, with Drax, Starlord, and Dr. Strange following moments later. "Mr. Stark?" Peter spoke up as he suddenly felt sick, stumbling forward a little bit. "I don't feel so good." Through his Spidey Sense, Peter felt as each atom that made up his body started to break apart, vanishing seconds later when the bonds that kept them together were no longer there.
"You're alright." Tony reassured, the teen able to see the fear in his hero's eyes. "I-I don't know... I don't know what's happening..!" He informed as he fumbled a few more steps before the strength in his legs was just gone, Tony catching him in his arms and holding him tightly, pressing him against his body. Peter clung to Tony in desperate fear, praying most likely like Tony was in that if he just held onto him, was held by someone he thought of as a father, that maybe, maybe, this cold, numb feeling would go away. But, Peter felt as his body started to sift into ash, sensing that whatever this was wasn't going to stop, and the pure fear of his unavoidable death took hold of him.
"I don't wanna go...I don't wanna go..! Stark, please! Please, I don't wanna go..." He sobbed, so scared, not ready for his life to be over. He just became an Avenger, he was almost out of high school, and he knew that once they had beaten Thanos, that Tony was gonna take him under his wing, give him proper training and access to higher education, to have him and his aunt May live a more comfortable life. But now that was never going to happen. "I don't wanna go..!" He felt as Tony did his best to lower him gently to the ground, the two of them just falling the rest of the way with a thud.
Tony pushed himself up enough for Peter to see him. He didn't what to do. What could he do? He knows that Thanos has achieved what he had set out to do, and now half of the universe was being erased from existence. But, God, why him? Why the kid? Why Peter? Tony's done enough harm to the world, and most likely universe, as it is; why couldn't he be the one to be erased instead? Peter glanced over to Tony, reached up with a hand that was already half ash, and stroked the side of Tony's head as best as he could, offering him a small smile. He recalls the stern words Tony had given him when he took away the suit he had given him. "I'm sorry." He whispered before he felt as every piece of his body turned to ash, before nothingness claimed him.
Peter jolted awake, soaked in sweat and panting hard. He threw the sheets off his body, throwing the actual door for his room against the wall, and raced for the elevator. He smashed his finger into the button that will take him to the first floor of the R&D section of the Avenger's Tower, knowing that Tony had been working on a big project with Banner for the last two weeks, and knew that Tony tended to stay up an ungodly amount of hours in order to get certain parts done. His footfall echoed too loudly in the empty hallway, the teenager barreling for the lab he knows Tony will be in.
Only, he wasn't there.
"No...no!" The anxiety set in. He had been so worried that his dream had been a warning; a warning that something was going to happen to Tony. And now a man Parker knows will stay up for DAYS on end just to finish a project wasn't in the place he was suppose to be. His heart started to slam into his ribs before he turned and race back to the elevator. "FRIDAY! Take me to Tony's room!" "Of course, Peter." The female voice spoke up as he neared the now opening doors, spinning to watch them close. "Peter? Are you okay?" "No! N-No, I-I... I don't...!" He tried, but he was too panicked to actually say what was going on.
The doors for the elevators slid open and Peter booked it to Stark's room. His door slid open and he was only a little past the door when he paused and saw Tony. He was lounging in his bed, under his sheets with his legs crossed at the ankles, holding a data pad in his hands. "Kid?" He spoke up, a worried look crossing his face from the tears falling down Peter's cheeks. He quickly put down the pad so his arms could wrap around the smaller body that lunged into him, pressing the crying, shaking child against his chest. "Peter, what happened? What's going on?"
"I-I..! I-I, ha-had a d-dre-dream where we di-didn't beat Thanos, an-and I, I-I, I-I-I died! A-And I wa-was s-so, so scared that i-it was a, a, a warning th-that something m-might h-ha-have happened to, to you! S-So I w-went to th-the lab to che-check on you, b-but yo-you weren't there! A-And I, I got r-really sc-scared! S-So, so I had F-FRIDAY b-bring me h-here! And, I'm, I-I'm...! I'm just glad you're safe, Tony!!" Peter sobbed brokenly, Tony hushing him as he rubbed circles into his back, rocking from side to side to try and comfort him. "It's okay, kid. It's okay. I'm right here. I'm not going anywhere."
Tony wasn't sure what he should be more distressed over: the fact that Peter had dreamed of his own death, or the fact that dream had Tony more scared about it than the teenager he was holding? Tony's gonna go with option 3 and say both. He'll deal with that later though. "Come here." Peter heard the older man hush and he lifted his head off the man's chest in confusion when he sat him up more. It was cleared up when Tony tossed the sheets off his body enough for Parker to crawl under them, quickly doing so; he felt so much better as the comfortable weight of the soft sheets come on top of him, Tony shifting a little so Peter could rest his head over the man's heart.
Instantly, his anxiety quieted as he began to listen to the man's steady heartbeat, feeling his slow, even breathing as his chest rose and fell. "There we go. Relax, kiddo. I've got you." Tony whispered, reaching up to dim the lights in his room enough so that he could still see Peter, deciding that the project he's been working on can wait until tomorrow for him to continue. Peter felt as Tony moved the data pad off his bed, setting it on the nightstand, before he wiggled the two of them down a little more, Peter way more comfortable in the new position. "Close your eyes, Petey. I'm right here, and I'm not going anywhere." "...Thank you, Tony..."
Stark was honestly shocked that he only NOW noticed that Parker was calling him by his first name; he's so used to him calling him Mr. Stark that he really should have spotted that sooner. But, honestly, he wasn't too surprised. The kid was scared, so he was more likely to do or say things in ways he normally wouldn't. He felt as some tears soaked into his night shirt, but he didn't care, he wanted this boy to feel safe, and if that was in his arms, then so be it. Tony pressed a kiss to the crown of Peter's head once he felt his breathing had calmed down and his body was more relaxed. "Any time, Peter."